W58-XB1A4A-20=W58 Circuit Breaker Type: Thermal Circuit Function: Series Trip Illuminated: Without Actuator Color: White Operating Voltage: 250 VAC Thermal Series Trip Without White | Circuit Breaker | Part Number: W58-XB1A4A-20 | Internal Number: 1-1393249-2 | TE Connectivity | Potter & Brumfield